53 / 84 wippsider and wippwalker offer a sensomotoric exercise system for balancing reac ons and motor control. ac ve motor playing exercises are combined with very high mo va ng aspects and simple to use. both the wippsider and wippwalker are made of highly durable plas c. maximum load 120 kg. wippsider wippwalker wippsider | art 2181 colour: blue. age product size (cm) ø l w h single unit box